ClubLexus - Lexus Forum Discussion - Surging at Idle (when warm only) SC400

ClubLexus - Lexus Forum Discussion (https://www.clublexus.com/forums/)

- Maintenance (https://www.clublexus.com/forums/maintenance-11/)

- - Surging at Idle (when warm only) SC400 (https://www.clublexus.com/forums/maintenance/606530-surging-at-idle-when-warm-only-sc400.html)

Deaol

12-05-11 05:43 PM

Surging at Idle (when warm only) SC400

I hope someone might be able to help with this situation,

I have a 93' sc400 and just as of late and only after the car has been driven for a period of time does it begin to surge at idle. RPMs seem to fluctuate between 400-750 and occasionally stalling out. Also wanted to note when this issue starts happening the shifting at low speed seems to be very jarring and it really can't make up its mind what gear to be in.

Appreciate it alot for any feedback!! :thumbup:

ArmyofOne

12-05-11 07:18 PM

Any CEL/Codes?

GS4_Fiend

12-05-11 08:22 PM

Check for vacuum leaks. On LH-Jet system HATES vacuum leaks.

Deaol

12-06-11 09:21 AM

Quote:

Originally Posted by ArmyofOne (Post 6864474)

Any CEL/Codes?

Not throwing any codes when cold,than took it for a long drive on the highway last night, got it warm and starting to surge and checked for codes and nothing.

Quote:

Originally Posted by GS4_Fiend (Post 6864652)

Check for vacuum leaks. On LH-Jet system HATES vacuum leaks.

I will have a look at the vacuum system.

Thanks for the feedback thus far

All times are GMT -7. The time now is 08:52 AM.